A word to describe a game that pot-heads play. They gather in a circle and toss the sack between one another hitting the sack with there legs, and occasionally the arms. Be careful not to drop the sack, or you lose.
Some slang words include
Sackey-
sackey means when you play to hard and then you become really tired
Hack the sack-
Hack the sack means to hit/play between players
"Don't be a hack, do the sack"-
This phrase is directed haters, who dont sack. This phrase also encourages others to play